baber/WOPTO huggingface dataset:
Patent KR-20110083846-A (KR)
Title: A comb for dyeing
Inventor: JIN IN SEOK
IPC: A45D24/22
Filed: 2010-01-15
Abstract: PURPOSE: A comb for dyeing is provided to enable a user to easily and conveniently dye gray hair at a low cost. CONSTITUTION: A comb for dyeing comprises: a body(100) in which a handle for grip is equipped in one side thereof; a comb unit(200) in which a plurality of bonding grooves are equipped in one side of the body and which is made of fabric material that adsorbs hair dye; a cover(300) which is selectively combined with the body in order to cover the comb unit; and a refill member which is filled with hair dye.
Patent KR-20110083897-A (KR)
Title: 지역 난방 수요예측 및 유동 단가 적용 시스템
Inventor: YANG HYUNG KEE
IPC: G06Q50/06
Filed: 2010-01-15
Abstract: 본 발명은 지역 난방 공급원이 수요자의 상태 정보를 수집하고 수집된 내용과 현재 생성되는 난방 에너지의 수용공급 조건을  함께 분석하여 수요가 공급을 앞서는 경우 에너지 공급원을 추가 가동하고 사용자에게 적정 에너지 이상 과소비인 경우 난방 공급 요금을 할증하는 방식으로 수요를 억제하고 반대로 과잉 공급이 된경우 에너지원을 일정 부분 차단하고 사용자로 하여금 잉여 부분의 사용을 권장하는 방안으로 난방 요금을 활인하는 방법에 관한 것이다. 
본 발명은 지역 난방 시스템이 운영되는 사용자 측의 적산 열량계의 스마트 단말기화와 그에 따른 사용자와 공급자의 상호 단가 정보 교환과 그에 따른 수요와 공급의 균형을 맞추는 에너지 고효율화에 대한 구축 방법이다.
Patent KR-20110090051-A (KR)
Title: Branched and sulfonated copolymer containing perfluorocyclobutane rings, preparation method thereof and electrolyte membrane using the same
Inventor: LEE JU HO
IPC: H01M8/10
Filed: 2010-02-02
Abstract: PURPOSE: A branched sulfonated copolymer is provided to ensure a branched structure with easy phase separation and hydrogen ion conductance and to secure excellent hydrogen ion conductivity and mechanical properties. CONSTITUTION: A method for preparing a branched sulfonated copolymer including a perfluorocyclobutane group represented by chemical formula 1 comprises the steps of: (i) polymerizing the bis(trifluorovinyloxy) monomer of chemical formula 2, the bis(trifluorovinyloxy) monomer of chemical formula 3, and the tris(trifluorovinyloxy) monomer of chemical formula 4 to prepare a branched sulfonated copolymer including a perfluorocyclobutane group represented by chemical formula 5; and (ii) reacting the copolymer represented by chemical formula 5 with a sulfonating agent.
Patent KR-20110090378-A (KR)
Title: Power supply for photovoltaic power system
Inventor: LEE YONG SU
IPC: H02J9/06
Filed: 2010-02-03
Abstract: PURPOSE: A power supply apparatus of a photovoltaic connection board system is provided to connect commercial electricity to the connection board and a solar cell part, thereby stably and steadily supplying to the connection board. CONSTITUTION: A voltage is charged by commercial electricity(200). A connection board(300) detects the output voltage of a solar cell part(100). A power supply apparatus(400) supplies power to the connection board. The power supply selectively controls input power supplied from the commercial electricity and solar cell part in order to supply to the connection board.
Patent KR-20110092022-A (KR)
Title: A complex alcohol fatty composition for heat storage function and preparation method thereof
Inventor: LEE WON MOK
IPC: C09K5/06
Filed: 2010-02-08
Abstract: PURPOSE: A complex alcohol fatty acid ester composition is provided to ensure a single melting point in the desired melting temperature and to prepare an environment-friendly phase change material which has high latent heat and prevents overcooling. CONSTITUTION: A complex alcohol fatty acid ester composition for a heat storage function is formed by: mixing single or two kinds or more selected from the group of fatty acids consisting of lauric acid, myristic acid, palmitic acid, stearic acid, coconut oil fatty acid, and oleic acid in a desired ratio in order to set a single melting temperature and prevent the overcooling; and performing the esterification in which the mixture, at least one kind alcohol, nitrogen foam, and P-toluenesulfonic acid are repeatedly mixed, heated, and cooled, wherein the at least one kind alcohol is selected from monovalent alcohol such as methyl alcohol, ethyl alcohol, butyl alcohol, and isopropyl alcohol, or polyhydric alcohol.
Patent KR-20110092749-A (KR)
Title: Cylindrical pencil case having holder
Inventor: PARK BYEONG KYU
IPC: A45C11/34
Filed: 2010-02-10
Abstract: PURPOSE: A cylindrical pencil case which is attached to a fixing holder is provided not to disperse the pencil without irregular sharking by not allowing pencils inside the pencil case to move to the fixing holder. CONSTITUTION: A cylindrical pencil case includes a pencil case main body(120), a cover(110) and a pencil mounting unit(130). A low surface of a pencil case body of a cylindrical type is closed. The cover is combined to open and close by a pencil case main body and a zipper(111). The pencil mounting unit has a plurality of holders which fixes the pencil by being fixed inside the pencil main body.
Patent KR-20110094591-A (KR)
Title: Portable material sharing device using on-line
Inventor: JUNG JIN YONG
IPC: G06F19/00
Filed: 2010-02-17
Abstract: PURPOSE: A portable data sharing apparatus using online is provided to improve learning effect and task effect by sharing data and faces between a teacher and a leaner through images using online. CONSTITUTION: A photographed data puts on a base(10). A first rotating member(12) is connected rotatably to the base. A second rotating member(13) is rotatably connected to the end part of the first rotating member. An image transmission unit transmits image. The first rotating member and the second rotating member are accepted in the state that each other lies one upon another in storage grooves(11) of the base.
Patent KR-20110094919-A (KR)
Title: Apparatus for warning open of sunroof glass in vehicles
Inventor: WANG HAN SEOK
IPC: B60Q5/00
Filed: 2010-02-18
Abstract: PURPOSE: A sunroof glass opening alarm of the vehicles is provided to enable passenger to be easily recognized the open state of the sunroof glass when getting off the vehicles in the state opening the sunroof glass. CONSTITUTION: A sunroof glass opening alarm(100) of the vehicles comprises a sunroof sensor(110), a start key sensor(120), a door sensor(130), and alarm unit(140). The sunroof sensor senses the opening and closure of the sunroof glass. The start key sensor senses the insertion of the start key of inside-vehicle. The door sensor senses the opening and closure of the door or inside-vehicle. The alarm unit receives a sensing signal form the sunroof sensor, start key sensor and door sensor. The alarm unit generates the opening emergency signal of the sunroof glass, if the opening of the sunroof glass, demount of the start key, and the opening of the door are all satisfied.
Patent KR-20110100819-A (KR)
Inventor: KIM GYU IL
IPC: G06Q50/10
Filed: 2010-03-05
Abstract: 웹상의 파일을 효과적으로 실행하기 위한 웹페이지 제공 시스템 및 방법이 개시된다.  웹페이지 제공 시스템은 복수의 파일을 저장 및 유지하는 파일 유지부, 복수의 파일 중 적어도 하나에 대한 정보를 포함하고 적어도 하나에 대한 정보 중 하나 이상의 정보를 선택하기 위한 기능을 포함하는 웹페이지를 사용자 단말기로 제공하는 웹페이지 제공부 및 사용자 단말기에서 기능을 통해 선택된 하나 이상의 정보에 대응되는 파일을 실행하고, 실행결과를 사용자 단말기로 제공하는 파일 처리부를 포함한다.
Patent KR-20110101609-A (KR)
Inventor: PARK SUN YOUNG
IPC: A42B1/00
Filed: 2010-03-09
Abstract: 본 발명은 사용자가 두부에 착용하는 통상적인 모자의 챙에 간단한 조작으로 탈부착 가능한 모자에 부착하는 후사경에 대한 것으로서, 보행중이거나 운동 중에 고개를 후방으로 돌리지 않고도 용이하게 후방이나 기타 사각지대를 식별함으로써 운동 중의 안전사고를 미리 방지할 수 있다. 
이에 본 발명은 모자에 챙에 탈부착되는 결합부재와 이에 연결 구성되어 다양한 각도 조절이 가능한 암부재, 그리고 암부재 말단에 결합된 거울부재로 이루어져, 사용자가 다양한 각도 조절이 가능한 것을 특징으로 하는 후방관찰이 가능한 모자에 부착하는 후사경을 제공한다.
Patent KR-20110105088-A (KR)
Inventor: SONG KI WON
IPC: C12Q1/68
Filed: 2010-03-18
Abstract: 본 발명은 극저주파 자기장에 의한 DNA의 이중나선사슬 절단 측정 방법 또는 측정 장치에 관한 것이다.   본 발명은 일상생활에서 빈번하게 노출되는 극저주파 자기장이 인간을 포함한 동물의 유전체 안정성에 미치는 효과를 연구하고 DNA의 손상정도를 간편하게 측정하는 체외진단 시스템으로 유용하게 이용될 수 있다.   또한 본 발명은 자기장으로 동물세포에서 이중나선사슬 절단을 유도하는 효율적인 조건, 이중나선사슬 절단을 분석하는 효율적인 방법, 그리고 자기장에 노출된 동물세포의 이중나선사슬 절단이 유발되었을 때 이를 복구하거나 세포사멸을 유도하는 기전의 물질을 스크리닝 할 수 있는 시스템 및 방법을 제공한다.
Patent KR-20100108276-A (KR)
Title: Continuously variable transmission and method for controlling the same
Inventor: INOUE MAMIKO
IPC: F16H61/662
Filed: 2010-03-26
Abstract: PURPOSE: A continuously variable automatic transmission and a control method thereof are provided to prevent the degradation of the durability of a friction connection element by executing the 2-1 change of speed of an auxiliary transmission device only when a large driving force is required. CONSTITUTION: A transmission controller(12) executes a 2-1 change of speed which changes the shiftgear of an auxiliary transmission device from a second speed to a first speed. The transmission controller varies the shiftgear of the auxiliary transmission device(30) from the second speed to the first speed. A torque converter(2) comprises a lock-up clutch. A transmission comprises a variator(20) and the auxiliary transmission device which is serially installed in the variator. The variator comprises a primary pulley(21), a secondary pulley(22), and a V belt(23).
Patent KR-20110060780-A (KR)
Title: Detachable handle for cooker
Inventor: KWON DO KYONG
IPC: A47J36/34
Filed: 2010-03-26
Abstract: PURPOSE: A detachable handle for cooker is provided to separate quickly and simply a detachable handle from a cooker, in which in the state of stably gripping a main body with 4 fingers except for thumb, when a user presses a button with a thumb, an operation lever is open and the detachable handle is separated from the cooker. CONSTITUTION: A detachable handle for cooker includes a main body(10); a support case(20); an operation part(30); a pressing piece(50); a operation lever(70); and a button(80). The main body has a supporting device(12) on the front. The support case is fixed behind of a working chamber of the main body. The operation part runs back and forth from the support case with a guide of a guide roller(28). The pressing piece combines a presser portion with the supporting device of the main body to face those two parts opposite, and is connected to the operation part by a connecting hole. The operation lever is connection to fixing pins(22,24) to be rotatable, which contacts a roller(72) and a guide roller when the operation lever is open and closed. The operation lever is combined with combination grooves(32,34) and keeps a switching angle. The button gives elasticity to the upper front of the main body with a leaf spring(82). The operation lever forms left and right side boards, and a front panel. The left and right side boards seclude an entrance of a working chamber. The left and right side boards form a contact protrusion in a protrusive way. The contact protrusion contacts with the button.
Patent KR-20110114127-A (KR)
Inventor: YUON TAE SAM
IPC: E21B17/01
Filed: 2010-04-13
Abstract: 본 발명은 라이저 인장 장치에 관한 것이다.  상기 라이저 인장 장치는 해저자원의 시추에 사용되는 라이저를 인장시키기 위해 시추선의 하부에 위치된 복수의 실린더를 갖고, 상기 실린더의 외부로 노출되는 피스톤 로드의 표면에 염분이 축적되는 것을 방지하기 위해 상기 피스톤 로드의 표면으로 물을 분사하도록 구성된 분사 노즐; 을 포함하는 것을 특징으로 한다.    
이러한 구성에 따르면, 피스톤 로드의 표면으로 물을 분사하는 분사 노즐을 갖는 라이저 인장 장치에 의해, 피스톤 로드 표면에 염분이 축적되는 것을 방지할 수 있다.
Patent KR-20110114239-A (KR)
Title: 민속놀이용 회전 유희구
Inventor: HONG GYEO RE
IPC: A63H5/00
Filed: 2010-04-13
Abstract: 본 발명은 민속놀이용 회전 유희구에 관한 것으로, 좀 더 상세하게는 일명'쌩쌩이'라고 불리는 민속놀이용 회전 유희구를 돌릴 때 고리를 잡고 팔을 편 상태로 돌려 소리가 나는 것과는 달리 본 발명은 날개와 연결된 연결줄을 손잡이와 연결하여 적은 힘으로 날개를 돌려 소리를 내는 것이 가능하도록 구성된다. 또한 날개의 모양을 다양하게 하여 소리의 변화를 주는 것이 가능하며, 날개에 발광다이오드(Light Emitting Diode, 이하 'LED'라 한다)를 포함하는 칩온보드(Chip On Board, 이하 'COB'라 한다)회로를 설치하여 날개를 돌릴 때 소리와 함께 다양한 색의 빛을 내는 것을 특징으로 한다.
Patent KR-20100113988-A (KR)
Title: Optical fiber cable holder, fusion splicer including the holder, and fusion splicing method using the holder
Inventor: SATO RYUICHIRO
IPC: G02B6/255
Filed: 2010-04-13
Abstract: PURPOSE: An optical cable holder, a fuse-connecting device including the holder, and a fuse-connecting method using the holder are provided to easily place optical cables to the main body of the holder by contacting the external end of the optical cables with a location determining surface. CONSTITUTION: The main body of a holder(22) contains the core-wire of optical fibers through a core-wire containing recess and contains the exposed part of the optical fibers through a skin holder. A core-wire maintaining unit(31) pressurizes and maintains the core-wire of the optical fibers contained in the core-wire containing recess. A skin maintaining unit(32) pressurizes and maintains the optical fibers in the skin holder.
Patent KR-20110126288-A (KR)
Title: Method of manufacturing lithium ion capacitor and lithium ion capacitor obtained by the method
Inventor: CHOI DONG HYEOK
IPC: H01G9/042
Filed: 2010-05-17
Abstract: PURPOSE: A method for manufacturing a lithium ion capacitor and the lithium ion capacitor manufactured thereby are provided to shorten a pre-doping process by pre-doping a lithium ion by directly contacting lithium foil with a cathode. CONSTITUTION: A preliminary electrode lamination is formed by successively laminating a separator(110), an anode(120), a lithium foil(130), and a cathode(140). The separator divides the cathode and the anode. An electrode lamination is formed by respectively welding the anode terminal(120c) and the cathode terminal(140c) of the preliminary electrode lamination. The electrode lamination is dipped in an electrolyte solution and the lithium ion is pre-doped in the cathode. The electrode lamination, which includes a pre-doped cathode, is sealed.
Patent KR-20110128622-A (KR)
Title: Soundproofed wall
Inventor: KIM SUNG JOON
IPC: E01F8/00
Filed: 2010-05-24
Abstract: PURPOSE: A soundproof wall is provided to ensure rigidity to bear sufficient wind pressure, enhance productivity, reduce a manufacturing cost, enable easy installation using an existing post without replacing the existing post, and enhance look. CONSTITUTION: A soundproof wall comprises an H beam(10), a soundproof plate(20), and at least one fixing member. Posts are installed on a basic retaining wall at regular intervals. The soundproof wall is inserted into the H beam. The soundproof plate comprises a plate(22), a lower frame(24), vertical frames(26), a corner block(28), and a support member(200). The plate is formed from a transparent or opaque glass material or an acryl plate. The lower end of the plate is inserted into the lower frame. Both vertical units of the plate are inserted into the vertical frames. The corner block couples both ends of the lower frame to the lower end of each vertical frame.
Patent KR-20110129281-A (KR)
Title: Secondary battery
Inventor: BYUN SANG WON
IPC: H01M50/55
Filed: 2010-05-25
Abstract: PURPOSE: A secondary battery is provided to minimize the loosening phenomenon of a nut, even if external vibrations or shocks are applied, thereby improving the sealing property of an electrode terminal. CONSTITUTION: A secondary battery comprises: a electrode terminal(200) connected to an electrode assembly in a case; a nut(800) fixed to the electrode terminal, and forming screw thread in the inner plane thereof; a cap plate(510) sealing the case, and penetrated by the electrode terminal; and a seal gasket(610) between the electrode terminal and the cap plate compressed by the nut. The electrode terminal comprises: a flange part(210) which is under the bottom of the cap plate; an insert part(220) inserted in the through-hole of the cap plate; and a coupling part(230) in which a thread groove(231) is formed to correspond the screw thread.
Patent KR-20110130576-A (KR)
Title: Leather floor sheet and the method of manufacturing thereof
Inventor: PARK SUNG HA
IPC: B32B5/18
Filed: 2010-05-28
Abstract: PURPOSE: A leather seat floor material and a manufacturing method thereof is provided to eliminate problems in dimensional stability by preventing moisture from being permeated into a floor material using a surface processing member. CONSTITUTION: A moisture blocking member(110) blocks the moisture of a floor. A foam layer(120) provides a nice cushion. A coherence enhancement member(130) is included on the foam layer and improves coherence with the foam layer. A glass fiber(140) provides the function of dimensional stability. A surface processing member(150) is attached on the glass fiber and offers a touching sense to the appearance of leather.
Patent KR-20110131566-A (KR)
Title: 섬유 강화 플라스틱의 제조 방법 및 이를 이용한 섬유 강화 플라스틱
Inventor: KIM YOUNG UK
IPC: B29C70/10
Filed: 2010-05-31
Abstract: 섬유의 단사 문제를 보다 확실하게 해결하면서 섬유의 최종분산이 원활하게 이루어 질 수 있는 섬유 강화 플라스틱의 제조 방법 및 이를 이용한 섬유 강화 플라스틱이 개시된다.  본 발명의 일 실시예에 따른 섬유 강화 플라스틱의 제조방법은 섬유 강화 플라스틱의 제조에 사용되는 섬유 필라멘트(fiber filament) 다발을 준비하는 단계, 상기 섬유 필라멘트 다발에 꼬임(twist)을 가하는 단계, 상기 꼬임이 가해진 섬유 필라멘트 다발을 수지 용액에 담구는 함침단계, 상기 함침된 섬유 필라멘트 다발의 꼬임을 다시 풀어주는 단계, 그리고 상기 섬유 필라멘트 다발을 사출하는 단계를 포함한다.  이와 같은 구성에 의하면, 섬유 다발의 단사 문제를 효과적으로 해결하면서도 최종분산이 원활하게 이루어진 섬유 강화 플라스틱을 얻을 수 있다.
Patent KR-20110135006-A (KR)
Title: Broadband noise absorber of ventilation equipment for window
Inventor: SEO SONG WON
IPC: E06B5/20
Filed: 2010-06-10
Abstract: PURPOSE: A broadband noise preventing device of a window ventilation system is provided to reduce noise by driving a fan near a user. CONSTITUTION: A broadband noise preventing device of a window ventilation system comprises a sound absorption and resonance type sound absorbing member(12), a receiving member(14), a muffler(16), a hollow absorbers(18a,18b). The receiving member is formed into the hollow cylindrical type and is inserted inside the sound absorption and resonance type absorber. The muffler is inserted inside the receiving member in order to reduce the noise from the connection module. The hollow absorber is respectively fixed and coupled in both ends of the resonance type absorber and sound absorption.
Patent KR-20110135546-A (KR)
Title: Method for providing inbound roaming subscriber with communication service and roaming gateway therefor
Inventor: KIM SUNG JAE
IPC: H04W8/02
Filed: 2010-06-11
Abstract: PURPOSE: A method for providing inbound roaming subscriber with a communication service is provided to enable a inbound roaming subscriber to easily use a third communication network which is connected to a second communication network. CONSTITUTION: A wireless LAN temporary account generating unit(550) creates a temporary account which is necessary for connecting a third communication network about the roaming terminal by the registration process for the roaming terminal. The wireless LAN temporary account generating unit registers the temporary account to a certificate server of the third communication network. A character message sending part(570) writes a character message which includes the temporary account information which is created by the wireless LAN temporary account generating unit.
Patent KR-20110138428-A (KR)
Title: System and method for location finding using camera, lamp and short range communication module embedded in the equipment
Inventor: OH JONG TAEK
IPC: H04N5/225
Filed: 2010-06-20
Abstract: PURPOSE: A local communication module using opponent location recognition system, method, and embedded camera thereof are provided to establish an optimized temperature in the location of a user by recognizing the location of the user. CONSTITUTION: An opponent location measurement apparatus(11) receives light emitting signals which are generated by plural lamps(34, 35) of a measurement target apparatus(31) according to a light emitting signal generation command as video information through a camera(13). The opponent location measurement apparatus measures intervals between the location of a lamp in the video information and the lamp. The opponent location measurement apparatus measures the opponent location of the measurement target apparatus.
Patent KR-20120000298-A (KR)
Title: Control method for electric device
Inventor: KWON JAE KUK
IPC: H04L12/24
Filed: 2010-06-25
Abstract: PURPOSE: A control method for an electric device is provided to effectively supply the power from the power supply source and the power which is stored in the storing device to the electric device. CONSTITUTION: The power which is provided from a power supply source is stored in an electricity storage facility. The kWh consuming an electric power which is supplied from the power supply source is periodically measured at the electric product. According to the difference of the set amount of standard electric power and the kWh measured, the amount used rate of the power which is provided from the power supply source and the power which is stored in the electricity storage facility is determined. According to the power use amount rate, the power is provided to the electric product.
Patent KR-20120001828-A (KR)
Inventor: KWON HYO JOONG
IPC: B22D11/16
Filed: 2010-06-30
Abstract: 본 발명은, 턴디쉬에서 정상 상태의 침지 노즐을 통해 토출되는 용강량에 대한 스토퍼의 제 1 높이를 획득하는 단계; 상기 침지 노즐이 막힌 상태에서 상기 용강량을 토출하기 위한 스토퍼의 높이인 제 2 높이를 획득하는 단계; 상기 제 1 높이와 상기 제 2 높이를 이용하여, 상기 침지 노즐의 막힘지수를 획득하는 단계; 제 1 시점의 막힘지수에서 제 2 시점의 막힘지수를 뺀 차이값을 획득하는 단계, 제 1 시점은 제 2 시점보다 이른 시점이고,; 상기 차이값이 소정값 보다 큰 양의 실수이면, 상기 침지 노즐의 개재물이 탈락한 것으로 판단하는 단계를 포함하는, 침지 노즐의 개재물 탈락 검출 방법 및 이에 관한 연속 주조 방법에 관한 것이다.
Patent KR-20110006609-A (KR)
Title: Radio transmission system and electronic device
Inventor: KAWAMURA HIROFUMI
IPC: G06K17/00
Filed: 2010-07-01
Abstract: PURPOSE: A radio transmission system and an electronic device are provided to transfer a signal without using an electric wire by using a signal of a millimeter wave band. CONSTITUTION: If a first electronic device(101A) is mounted at a mounting structure(4A) of a second electronic device(201A), a millimeter wave signal transfer path(9) which enables the transfer of the information transmission of a millimeter wave band is formed between the first and second devices. A transmission target signal is converted into a millimeter wave signal between the first and second electronic devices. The millimeter signal is transferred through the millimeter wave band signal transfer path.
Patent KR-20120006201-A (KR)
Title: An otp based method and device for international atm withdrawal
Inventor: CHO HYUN JOON
IPC: G06Q40/00
Filed: 2010-07-12
Abstract: PURPOSE: An OPT usage ATM withdrawal apparatus and method thereof are provided to perform account transfer or withdrawal of money in an oversea ATM in which separate security devices are not installed through OTP. CONSTITUTION: A specific account ID, a specific card ID, and a specific OTP generating-function ID are matched in an account management DB(110). A statement receiver(120) receives the specific account ID, the specific card ID, and the specific OTP generating-function ID. The fund withdrawal application includes the OTP instead of a password input. An OTP authenticator(190) authenticates whether the OTP is calculated from the OTP generating function.
Patent KR-20120008189-A (KR)
Title: Method for manufacturing grain-oriented electrical steel sheets with extremely low core-loss and high flux-density
Inventor: SONG DAE HYUN
IPC: C21D8/12
Filed: 2010-07-16
Abstract: PURPOSE: A method for manufacturing a grain-oriented electrical steel sheet with low core loss and high magnetic flux density is provided to improve magnetic properties by improving the thermal stability of an inhibitor. CONSTITUTION: A method for manufacturing a grain-oriented electrical steel sheet with low core loss and high magnetic flux density is as follows. A silicon steel slab, comprising C 0.10-0.30 weight%, Si 2.0-4.5 weight%, Al 0.05-0.040 weight%, Mn less than 0.20 weight%, N less than 0.010 weight%, S less than 0.010 weight%, P 0.005-0.05 weight%, Sn 0.08-0.10 weight%, residual Fe, and inevitable impurities, is heated and hot-rolled. The hot-rolled slab is annealed and cold-rolled. The slab is decarburized and nitrified. The slab is secondly annealed.
Patent KR-20120009053-A (KR)
Title: Chair with the Function of Posture Correction
Inventor: LEE WOOK JIN
IPC: A47C9/00
Filed: 2010-07-22
Abstract: PURPOSE: A chair having a correction function is provided to gradually correct the figure of a user by gradually changing the support type of a back board unit. CONSTITUTION: A chair having a correction function comprises: a seat plate(20) which forms a seating space; a back board part which supports the back of a seat occupant who sits on the seat plate; and a leg part(10) which supports the seat plate. The back board part is equipped with: a supporting frame(31); a support arm(32) installed in a pivot structure through a shaft member; and a base(33) which elastically supports the support arm.